کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6473567 1424953 2018 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Correlations of chemical properties of high-alkali solid fuels: A comparative study between Zhundong coal and biomass
ترجمه فارسی عنوان
همبستگی خواص شیمیایی سوخت های جامد با اثر قلیایی بالا: بررسی مقایسه ای بین زغال سنگ Zhundong و زیست توده
کلمات کلیدی
قلیایی بالا؛ خاصیت شیمیایی؛ زغال سنگ Zhundong؛ زیست توده؛ توزیع سه تایی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


- The correlations of chemical properties of high-alkali solid fuels were probed.
- Some significant correlations were demonstrated.
- The fuel ratio of most biomass is an order of magnitude lower than Zhundong coal.
- Correlations between properties of biomass and growing region are not significant.
- Most biomass is distributed within a concentrated range in ternary diagram of ash.

The utilization of Zhundong coal has given rise to serious ash-related issues mainly because of its high-alkali characteristic, partly similar to biomass with high-potassium content. The chemical properties of such coals and biomass may have marked impacts on reactivity and ash fouling. However, the correlations of different chemical properties of high-alkali solid fuels have been seldom investigated, and then only on a few samples. Here, a comparative study of chemical properties of Zhundong coal and biomass was conducted based on a large database. Correlations between carbon content and ash yield and carbon content and fixed carbon were noted. The fuel ratios of nearly all types of agricultural biomass lay within a range of 0.15-0.30, approximately an order of magnitude lower than those of Zhundong coals, much lower than those of Zhundong coals. There were no significant associations between chemical property and wheat-growing region. In most cases, the ash composition, even for a single biomass type, showed considerable variation, with the K2O content of wheat and corn straw ash being particularly variable. Most Zhundong coals had medium and similar ash fusion temperatures regardless of the changing ash compositions. Contrary to biomass, the Na2O content in Zhundong coal ash was an order of magnitude higher than K2O content. The ash composition of a particular biomass type usually fell in a small region of the ternary diagram of acidic-alkali metal-alkaline earth metal oxide components.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 211, 1 January 2018, Pages 629-637
نویسندگان
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